I am so very sorry your hurting. Here's a big hug!
It sounds like your baby has a wonderful new home and although it is extremely painful for you, he should do well there. Sometimes Mom's do ask us to make choices in life that we would rather not do, but after reading your post it does sound like it was the right decision even though its so hard on you. Try to think positively for your baby in his new home and always remember the times you did get to enjoy with Wobie! He may be living elsewhere but he will always be in your heart!
May time ease your pain, but never erase your precious memories!!